…It is thought that the Stegosaurus and Ankylosauria differentiated in the Triassic, but this is unclear. The main species were Fabrosaurus , Hypsilophodon , and Iguanodonts, and in the Cretaceous, a large number of duckbills, ceratopsians, and pachycephalosaurs radiated adaptively. The Sauropods also differentiated in response (Figure). *Some of the terminology that mentions "Hypsilophodon" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…鳥盤目のうち剣竜類と曲竜などは三畳紀にすでに分化したと考えられているがはっきりしない。その主流はファブロサウルスFabrosaurusをはじめとして,ヒプシロフォドンHypsilophodonやイグアノドン類で,白亜紀に入ってカモハシ竜類,角竜類やパキケファロサウルスなどが大量に適応放散した。それに対応して竜脚類も分化した(図)。… ※「Hypsilophodon」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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